Automobile brake mechanism and safety device



Dec. 12, 1933. A. PQRCELL] 1,939,519

AUTOMOBILE BRAKE MECHANISM AND SAFETY DEVICE Filed May 18, 1955 Z1 dZ/bzzoa araeiizl Patented Dec. 12, 1933 j :is TA T s PATENT. O F

Application May 1a, 1933. Serial No. 671,737

6 Claims. (01. 188-5) This invention relates to certain'new and useing therefrom and rigidly Connected to a cross ful improvements in automobile brake. mechabar 8 that is journalled at its opposite ends as nism and safety device. at 9 in the side chassis bars B. g V r The primary object of the invention is to pro- The cross bars 8 supporting the brake plates vide a brake mechanism for motor vehicles operand 6 are adaptedto be rotated for shifting the able both manually andautomatically and is pribrake plates into and out of ground engaging maril'y intended as emergency equipment, empositions and the operating means for the cross bodying ground engaging brake shoes or plates bars 8 include a bearing shaft 10 secured to and extending transversely of the front and rear of depending from the bottom 11 of the automobile the motor vehicle and projecting laterally of the A and said shaft '10 rotatably supports at its low- 65 vehicle wheels and operable to prevent skidding er end as at 12, a lever 13 that is pivoted theremovement in any direction when engaged with to. The opposite ends of the lever 13 are respec the ground and also acting to'prevent the rolling tiv'el-y connected to the front and rear cross-bars of wheels over objects encountered. v 8, the connection between the lever 13 and front 7 It is a further object of the invention to assocross bar 8 including a longitudinally extending 70 ciate with the emergency brake mechanism a sigrod 14 pivoted to one end of the lever 13 as at 15, nal arm showing Stop that is rendered operthe rod 14 carrying an angularly extending rod able upon application of the emergency brake 16; the forward ends of the rods 14 and 16 being mechanism. I i pivotally connected as at 17 with depending arms a} With the above and other objects in view that t 18 carried by the cross bar 8 and rigid there- .75 willbecome apparent a'sthe nature of the invenwith; The connection between the other end of tion is better understood, the same consists in the lever 13 and the rear brake plate 6 includes a the'novel formjcombinationand arrangement of brake rod 19 pivoted intermediate its end as at parts hereinafter more fully described, shown in 20 to the lever 13; the rearend of the brake rod 19 I the accompanying drawing and claimed; being forked as at 21 with the ends of the forks 21 In the drawing: a pivotally connected as at 22 to the arms 23 rigid Figure 1 illustrates by dot and dash lines an with and depending from the rear cross bar 8. A automobile in side elevation withthe emergency brake rod 19 extends forwardly of the lever 13 brake and life saving mechanism associated and is pivotally connected as at 24 with the pedal therewith: 25 that has a bearing on the cross shaft 26, the

Figure 2 is a top plan view of the emergency pedal 25 being normally tensioned' as at 27 in a brake mechanism with part of the automobile rearward direction to cause movement of the lever illustratedby dot and dash lines; 13 for' h'olding; the brake shoesor plates 5 and 6' Figure 3 is a rear elevational view of the rear in their elevated normally inoperative positions. brake shoe or plate in ground engaging posi- Each brake plate 5 and 6 is provided with spaced 0"" tion with the automobile illustrated by dot and openings 28 permitting the passage of tow lines dash lines; and 'or the like for attachment to parts of the auto- Figure 4 is a detail sectional view taken on line mobile chassis and each brake plate further has 4-4 of Figure 1. its lower edge curved as at.29 as shown in Figure The emergency brake mechanism is of a char- 1 and serrated or toothed as at 30 for biting enacter permitting its use with motor vehicles of gagement with the ground; standard construction and comprises a pair of A stop signal is rendered operable simultaground engaging brake shoes or plates 5 and 6 neously with application of the brake shoes or respectively arranged at the front and rear ends plates 5 and 6,'the stop signal arm 31 pivotally o! the automobile A, the brake mechanism havsupported upon the bracket 32 at the rear end of ing parts thereof supported on the body of the the automobile A having a pull cord connection automobile A and the side chassis bars B, each- 33 with the brake rod 19 .at the point 34 so that brake shoe or plate 5 and 6 extending transversewhen the brake rod 19 is shifted to lower the 1y of the automobile and being of a width to exbrake plates 5 and 6 into ground engaging positend beyond the automobile wheels W, cons'tituttion, the signal arm 31 is shifted from its posi- 105 ing front and rear fenders to prevent the wheels 10 Sh wn in Fi u e e wa y 0f the brake of the automobile from running over a person or plate 6 upwardly to an exposed position as other object. shown in Figure 3.

The support for each brake plate 5 and 6 in-- From the above detailed description of the cludes a pair of arms '7 perpendicularly projectinvention, it is believed that the construction and 1m operation thereof will at once be apparent, it being noted that the brake plates 5 and 6 are manually operated by the pedal 25 to have the toothed edges 30 thereof moved into ground engaging position and a structure of this character is especially serviceable upon ice covered pavements and also for safely holding the automobile against movement when parked on an incline. The brake plates 5 andfi are automatically operated when an obstruction is encountered and as the brake plates extend 'late'r-' ally over the wheels W of the automobile, they act to prevent passage of the wheels over the body of a person or other object.- While there is herein shown and described the preferred embodiment of the. invention-it is nevertheless to be understood that'minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

I claim:

t 1. Emergency brakemeohanism comprising a pair of ground engageable brake plates respectively mounted transversely at the front and rear of anautomobile, a cross bar supporting each plate, a leverp'ivotally mounted intermediate the plates, connections between the ends of the lever and cross bars, manually o erable means for the lever for shifting the brake platesinto ground engaging positions, and the brake plates being of a width to overlie the ground wheels of the automobile. 9

t 2 Emergency brake mechanism comprising a pair of ground engag eable brake plates respectively mounted transversely at the front and rear of an automobile, across bar supporting each plate, a lever pivotally mounted intermediate the plates, connections between the endsv ofthe lever and cross bars, manually operable means for the lever for shifting thebrake plates into-ground engagingpositions, the brake plates being of a width to overlie the groundwheels oflthe automobile,

and a stopsignal device at one end of the auto-' mobile operatively associated with the emergency brake mechanism v i i 3. Emergency brake, mechanism comprising a. pair of ground engageablebrake. plates respectively mounted transversely at the front and rear of. an automobileya cross bar supporting each plate,a lever-pivotally mounted intermediate the plates, connections betweenthe ends of the -lever and cross bars and manually operablemeans for the lever for shifting the brake plates into; ground engaging positions, the manually operable means including rod connections respectively 7 between opposite ends of the lever and the cross bars at each end of the automobile and one of said rods acting as a foot operated brake rod.

the plates, connections between-the ends of the lever and cross bars, manually operable means for the" lever for shifting the brake plates into Q groundeng'aging positions, the brake plates being of a width to overlie the ground wheels of the automobile, the manually operable means including rod connections respectively between opposite ends of the lever and the cross bars at each end of the automobile and one of said rods acting as a foot operated brake rod.

5. Emergency brake mechanism comprising a 'pair of ground engageable brake plates respectively mounted transversely at the front and rear of an automobile,- a cross bar supporting each plate, a leverpivotally mounted intermediate the plates connections between the ends of the lever and cross bars, manually operable means for the lever for shifting the brake plates into ground rod.

6. Emergency brake mechanism comprising a pair of ground engageable brake plates respectively mounted transverselyat the front and rear of an automobile, a cross barv supporting each plate, a lever pivotally mounted intermediate the plates, connection's between the ends of the lever and cross bars,cmanually operable means for the leverfor shifting the brake plates into ground engaging positions, the brake plates being of a width to overlie the ground wheels of the automobile, av stop signal device at oneend of the automobile operatively associated with.

the emergency brake mechanism, the manually operable means including rod. connections re.- spectively between opposite ends of the lever and the cross bars at eachend of the automobile and one of said rods acting as a foot operated brake rod.

ALFoNso PoRoELLI. 

